/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.datayoo.moql;

import java.util.Date;
import java.util.List;
import java.util.Map;

/**
 * @author Tang Tadin
 */
public interface RecordSet {
	
	RecordSetDefinition getRecordSetDefinition();
	
	Date getStart();
	
	Date getEnd();
	
	int getRecordsCount();
	
	List<Object[]> getRecords();
	
	List<Map<String, Object>> getRecordsAsMaps();
	
	List<RecordNode> getRecordsAsNodes();
	
	List<RecordNode> getRecordNodesByColumns(String[] columns);
	
	Object[] getRecord(int index);

	List<Object> getColumn(String columnName);
	
	Map<String, Object> getRecordAsMap(int index);
	/**
	 * 
	 * @param record a record of the recordset 
	 * @return the map with the column's name and 
	 * the column's value of the record 
	 */
	Map<String, Object> toMap(Object[] record);
	
	
}
